CN101558459A - Method and apparatus for producing insulated wire - Google Patents
Method and apparatus for producing insulated wire Download PDFInfo
- Publication number
- CN101558459A CN101558459A CNA2008800007662A CN200880000766A CN101558459A CN 101558459 A CN101558459 A CN 101558459A CN A2008800007662 A CNA2008800007662 A CN A2008800007662A CN 200880000766 A CN200880000766 A CN 200880000766A CN 101558459 A CN101558459 A CN 101558459A
- Authority
- CN
- China
- Prior art keywords
- conductor
- coating layer
- electric wire
- preheating
- resin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/301—Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen or carbon in the main chain of the macromolecule, not provided for in group H01B3/302
Abstract
To provide insulated wire producing method and apparatus for producing a high quality corona-resistant insulated wire inexpensively. In the method for producing an insulated wire (D2), a primary coated wire (D1) wherein a primary coating layer (B) is applied to a conductor (A) is preheated at a temperature sufficient for enhancing adhesion of resin to the primary coating layer (B). Subsequently, resin such as polyphenylene sulfide resin is extruded onto the primary coating layer (B) of the preheated primary coated wire (D1), thus producing an insulated wire (D2) coated with a secondary coating layer (C) composed of PPS resin.
Description
Technical field
The present invention relates to the manufacture method and the manufacturing installation thereof of insulated electric conductor.
Background technology
As the manufacture method of making insulated electric conductor in the past, following known method is arranged: for example make the conductor dbus of circular cross section cross boxlike roller die (cassette rollerdie CRD) with a pair roller, after flat section is processed in drawing, make this conductor dbus cross annealing furnace, the conductor strain that elimination produces because of drawing processing is so that it is softening.Behind coating enamel paint on this conductor,, enamel paint baking layer is coated on the conductor again, then the insulated electric conductor of the flat section that obtains is like this batched by the oven baking.The manufacture method of the insulated electric conductor of patent documentation 1 is exactly one of this method.
In recent years, be accompanied by energy-conservationization and the small-sized and high performance of the drive motor etc. of continuous propelling electric equipment, industrial electro motivation, automobile, the inverter controlization of motor also is rapidly developed.Thus, in the employed insulated electric conductor of motor, be easy to generate corona discharge (, being called the local failure discharge again around point electrode) because of the discharge that the non-uniform electric field that forms causes.In order to prevent in this insulated electric conductor, corona discharge to take place, it is generally acknowledged that effective method is the thickness (with reference to Paschen's law) that is increased in the enamel paint baking layer that toasts on the conductor of insulated electric conductor.But because costing an arm and a leg of enamel paint can correspondingly increase manufacturing cost so increase the thickness of insulating film layer.
Therefore the applicant has developed insulated electric conductor D2 shown in Figure 3 (with reference to patent documentation 2).Promptly as shown in Figure 3, (outer circumferential side) forms a coating layer B who contains enamel paint baking layer B1 on conductor A, make electric wire D1 (below be called " a covered electric cable D1 "), (outer circumferential side) extrusion coating on this coating layer B again (below extrusion coating is called " extruding form ") resin (below this resin is called " extrusion resin "), form secondary coating layer C (below be called " secondary coating layer C "), make insulated electric conductor D2, promptly use cheap extrusion resin also can prevent corona discharge.In order to obtain the structure of this insulated electric conductor D2, in patent documentation 2, put down in writing and extrusion resin has been heated to the technology of pushing under the state of set point of temperature.
Disclose following technology in this external patent documentation 3: form the extrusion resin that is made of polyether-ether-ketone (PEEK) on conductive surface, when as insulated electric conductor, conductive surface is carried out preheating, the temperature that suppresses extrusion resin reduces; And on conductive surface, form insulating film layer in order to cancel described conductor pre-heating.
Patent documentation 1: No. the 3604337th, patent gazette
Patent documentation 2: the spy opens the 2005-203334 communique
Patent documentation 3: open clear 58-37617 communique in fact
Summary of the invention
Promptly use the manufacture method of patent documentation 2 can produce the insulated electric conductor that has improved corona-resistance property, but consider from corona resisting characteristics and adhesion strength aspect, cheap and make the high-quality electric wire of anti-the corona effectively and also require further improvement described manufacture method.The wherein so-called high-quality electric wire of anti-the corona, for example be meant corona inception voltage Vp more than the 1200V, adhesion strength S (being also referred to as peel strength, peeling intensity, bonding strength) more than 90mg/mm, describe around adhesion strength S below.
Particularly under the situation of the specification of size that has changed insulated electric conductor or material etc., create conditions, so the adhesion strength between coating layer and secondary coating layer is very weak because of being difficult to provide.The technology of a coating layer of patent documentation 3 disclosed formation exists the problem of the adhesion strength deficiency of coating layer and secondary coating layer too in addition.
In above prior art, be difficult to stably produce cheap and high-quality corona-resistant insulation electric wire.
In addition in this manual, so-called adhesion strength S is defined as: when the material that is fixed on certain basis material is cut out the otch that width is w, and establish when needed load is N when carrying out stretch release with cupping machine (strograph) value that obtains by S=N/w.
In addition in this manual, so-called corona inception voltage Vp is defined as: when being in contact with one another between insulated electric conductor, because the voltage that begins to occur corona discharge on the insulated electric conductor surface that the potential difference between the adjacent wire causes.
Problem the purpose of this invention is to provide the insulated electric conductor manufacture method and the manufacturing installation thereof that can stably produce cheap and high-quality corona-resistant insulation electric wire in view of the above.
According to inventor's research, in the technology of patent documentation 2, owing to carry out the extruding of this extrusion resin under only extrusion resin one side heated state, a cover surface can not bond fully well with extrusion resin sometimes, causes the adhesion strength deficiency.Can think in addition: the section configuration at insulated electric conductor is not under the situation of circle, owing to form the little position of local radius of curvature, peel off once being easy to generate on the interface of coating layer and secondary coating layer on these positions, so obviously show described adhesion strength deficiency.
The invention of claim 1 record is a kind of manufacture method of insulated electric conductor, be that formation contains a coating layer of enamel paint baking layer at least as a covered electric cable on metal conductor, and on a coating layer of this covered electric cable, extruding forms the secondary coating layer, make insulated electric conductor, it is characterized in that the manufacture method of described insulated electric conductor comprises: the electric wire preheating procedure, utilize the electric wire pre-heating device that a described cover surface is carried out preheating; And the resin extruded operation, utilize resin extruded equipment on a coating layer after this preheating, to push and form the secondary coating layer.
The invention of claim 2 record is the manufacture method of insulated electric conductor as claimed in claim 1, it is characterized in that, outermost layer at a described coating layer is under the situation of described enamel paint baking layer, in described electric wire preheating procedure, a described cover surface is preheating to the vitrification point that is lower than described enamel paint baking layer.
The invention of claim 3 record is the manufacture method of insulated electric conductor as claimed in claim 1, it is characterized in that, when on described enamel paint baking layer, be formed with in the described coating layer with the tack coat of described secondary coating layer bonding and the outermost layer of a described coating layer be under the situation of this tack coat, in described electric wire preheating procedure, a described cover surface is preheating to more than the vitrification point of described tack coat.
The invention of claim 4 record is the manufacture method of insulated electric conductor as claimed in claim 1, it is characterized in that, in described secondary coating layer, add under the situation that improves the bond properties material, in described electric wire preheating procedure, a described cover surface is preheating to more than the minimum temperature of described raising bond properties material and described coating layer generation chemical reaction.
The invention of claim 5 record is the manufacture method as each described insulated electric conductor in the claim 1～4, it is characterized in that, in described electric wire preheating procedure, a described cover surface is preheating to below the heat decomposition temperature of a described coating layer and secondary coating layer.
The invention of claim 6 record is as the manufacture method of each described insulated electric conductor in the claim 1～5, it is characterized in that, in described electric wire preheating procedure, with the described cover surface of the discontiguous mode preheating of a described covered electric cable.
The invention of claim 7 record is the manufacture method as each described insulated electric conductor in the claim 1～6, it is characterized in that, the manufacture method of described insulated electric conductor also comprises electric wire aligning operation, described covered electric cable after described electric wire aligning operation utilizes the electric wire equipment for straightening described preheating is aligned into basic straight condition, offers described resin extruded equipment.
The invention of claim 8 record is the manufacture method as each described insulated electric conductor in the claim 1～7, it is characterized in that, the manufacture method of described insulated electric conductor also comprises: the electric wire refrigerating work procedure, utilize the electric wire cooling device that the insulated electric conductor that extruding forms described secondary coating layer is cooled off; And film thickness measurement operation, utilize the film thickness measuring equipment to measure the thick resin film of this cooled insulated electric conductor.
The invention of claim 9 record is the manufacture method of insulated electric conductor as claimed in claim 1, it is characterized in that comprising: conductor is supplied with operation, utilizes the conductor supply arrangement that described conductor is provided continuously; The conductor manufacturing procedure makes from described conductor and supplies with the conductor that operation provides, and the limit is rolled by the pair of rolls of freely rotating without driving mechanism, and the shape of regulation is processed on the limit by the mould drawing; The conductor annealing operation utilizes the conductor after the conductor annealing device is processed drawing in described conductor manufacturing procedure to anneal; The film roasting procedure utilizes on the conductor after the film roasting plant is annealed in described conductor annealing operation and coats coating layer of formation by baking; Described electric wire preheating procedure utilizes the electric wire pre-heating device to carry out preheating to coat a covered electric cable that has formed a coating layer in described film roasting procedure; Electric wire aligning operation utilizes the electric wire equipment for straightening a covered electric cable after the preheating in described electric wire preheating procedure, aligns into basic straight condition; The resin extruded operation utilizes resin extruded equipment the extrusion resin extruding to be formed on the coating layer that utilizes a covered electric cable after described electric wire aligning operation is aligned; The electric wire refrigerating work procedure utilizes the electric wire cooling device push the insulated electric conductor that has formed extrusion resin in described resin extruded operation, is cooled to make extrusion resin to be bonded in the temperature on the coating layer integratedly one time; Film thickness is measured operation, utilizes the film thickness measuring equipment to measure the thick resin film of the insulated electric conductor that is cooled in described electric wire refrigerating work procedure; And the electric wire coiling process, utilize the electric wire taking-up equipment that the insulated electric conductor that has coated extrusion resin in described resin extruded operation is batched; Described conductor supply arrangement, described conductor process equipment, described conductor annealing device, described film roasting plant, described electric wire pre-heating device, described electric wire equipment for straightening, described resin extruded equipment, described electric wire cooling device, described film thickness measuring equipment and the configuration of described electric wire taking-up equipment tandem, and carry out continuously supplying with the whole operations of operation to the electric wire coiling process from described conductor.
The invention of claim 10 record is as the manufacture method of each insulated electric conductor of putting down in writing in the claim 1～9, it is characterized in that, the extrusion resin that constitutes described secondary coating layer is a polyphenyl stream ether resin.
The invention of claim 11 record is a kind of manufacturing installation of insulated electric conductor, formation contains a coating layer of enamel paint baking layer at least as a covered electric cable on metal conductor, and extruding forms the secondary coating layer on a coating layer of this covered electric cable, make insulated electric conductor, it is characterized in that, the manufacturing installation of described insulated electric conductor comprises: the electric wire pre-heating device, carry out preheating to a described cover surface; And resin extruded equipment, extruding forms the secondary coating layer on a coating layer after this preheating.
The invention of claim 12 record is the manufacturing installation of insulated electric conductor as claimed in claim 11, it is characterized in that, outermost layer at a described coating layer is under the situation of described enamel paint baking layer, utilizes described electric wire pre-heating device a described cover surface to be preheating to the vitrification point that is lower than described enamel paint baking layer.
The invention of claim 13 record is the manufacturing installation of insulated electric conductor as claimed in claim 11, it is characterized in that, when on described enamel paint baking layer, be formed with in the described coating layer with the tack coat of described secondary coating layer bonding and the outermost layer of a described coating layer be under the situation of this tack coat, utilize described electric wire pre-heating device that a described cover surface is preheating to more than the vitrification point of described tack coat.
The invention of claim 14 record is the manufacturing installation of insulated electric conductor as claimed in claim 11, it is characterized in that, in described secondary coating layer, add under the situation that improves the bond properties material, utilize described electric wire pre-heating device that a described cover surface is preheating to more than the minimum temperature of described raising bond properties material and described coating layer generation chemical reaction.
The invention of claim 15 record is the manufacturing installation as each described insulated electric conductor in the claim 11～14, it is characterized in that, utilize described electric wire pre-heating device that a described cover surface is preheating to below the heat decomposition temperature of a described coating layer and secondary coating layer.
The invention of claim 16 record is the manufacturing installation as each described insulated electric conductor in the claim 11～15, it is characterized in that described electric wire pre-heating device is to carry out preheating with a described discontiguous mode of covered electric cable to a described cover surface.
The invention of claim 17 record is the manufacturing installation as each described insulated electric conductor in the claim 11～16, it is characterized in that, the manufacturing installation of described insulated electric conductor also comprises the electric wire equipment for straightening, be used for a covered electric cable after the described preheating is aligned into basic straight condition, offer resin extruded equipment.
The invention of claim 18 record is the manufacturing installation as each described insulated electric conductor in the claim 11～17, it is characterized in that, the manufacturing installation of described insulated electric conductor also comprises: the electric wire cooling device, and the insulated electric conductor that extruding has been formed described secondary coating layer cools off; And the film thickness measuring equipment, measure the thick resin film of this cooled insulated electric conductor.
According to this invention, because after utilizing the electric wire cooling device to make extruding form the electric wire cooling of resin, utilize the measurement of film thickness measuring equipment to be coated on thick resin film on the electric wire, so can obtain having the electric wire that can be fit to prevent produce the thick resin film of corona discharge.In addition, for example also can remove the thin underproof part of thick resin film.
The invention of claim 19 record is the manufacturing installation of insulated electric conductor as claimed in claim 11, and it is characterized in that comprising: the conductor supply arrangement provides described conductor continuously; The conductor that provides from described conductor supply arrangement is provided the conductor process equipment, and the limit is rolled by the pair of rolls of freely rotating without driving mechanism, and the shape of regulation is processed on the limit by the mould drawing; The conductor annealing device is annealed to the conductor that utilizes described conductor process equipment to carry out after drawing is processed; The film roasting plant on the conductor after utilizing described conductor annealing device annealing, coats coating layer of formation by baking; The electric wire pre-heating device carries out preheating to utilizing described film roasting plant to coat a covered electric cable that has formed a coating layer; The electric wire equipment for straightening is utilizing a covered electric cable after the preheating of described electric wire pre-heating device to align into basic straight condition; Resin extruded equipment, on the coating layer of a covered electric cable after utilizing described electric wire equipment for straightening aligning, extruding forms the secondary coating layer that is made of extrusion resin; The electric wire cooling device, the insulated electric conductor utilizing described resin extruded equipment extruding formation extrusion resin is cooled to make described resin to be bonded in the temperature on the coating layer integratedly one time; The film thickness measuring equipment is measured the thick resin film that utilizes the cooled insulated electric conductor of described electric wire cooling device; And the electric wire taking-up equipment, batch utilizing described resin extruded equipment to coat the insulated electric conductor behind the resin; Described conductor supply arrangement, described conductor process equipment, described conductor annealing device, described film roasting plant, described electric wire pre-heating device, described electric wire equipment for straightening, described resin extruded equipment, described electric wire cooling device, described film thickness measuring equipment and the configuration of described electric wire taking-up equipment tandem.
According to claim 1 or the described invention of claim 11, because a coating layer is carried out preheating, and extruding for example forms extrusion resins such as polyphenyl stream ether resin (below be called " PPS resin ") on the coating layer after this preheating, so can improve the bond properties of a secondary coating layer and a coating layer, stably make high-quality corona-resistant insulation electric wire.
Promptly, (for example content of patent documentation 2) wished by improving the temperature of extrusion resin in the past, make that extrusion resin enters into a cover surface well concavo-convex carry out bonding, and in the present invention, by a cover surface is carried out preheating, before extrusion resin is pushed, coating layer is fully heated, so can stably further improve the bonding force of coating layer and secondary coating layer.
Considered by the temperature of further raising extrusion resin one side, also to utilize the method that heats a coating layer from the heat of extrusion resin conduction in addition, but must consider the harmful effects such as thermal decomposition of extrusion resin like this, difficult control of temperature, and relying on the heat that conducts from extrusion resin to make the process of a coating layer intensification, might be difficult to stably a coating layer be carried out preheating, to stably make cheap and high-quality corona-resistant insulation electric wire, preferred manufacture method of the present invention.
According to claim 2 or the described invention of claim 12, because a coating layer does not surpass vitrification point, so even foreign matter etc. contact with the surface, a coating layer also is difficult to produce distortion, so be preferred.
According to claim 3 or the described invention of claim 13, by tack coat is heated to more than the vitrification point, when extrusion resin was pushed, tack coat can soften reliably, can guarantee bonding with the secondary cover surface, so be preferred.
According to claim 4 or the described invention of claim 14, in the secondary coating layer, add and improve bond properties material (for example isocyanates), by making this raising bond properties material and a coating layer carry out chemical reaction, can guarantee the bonding of coating layer and secondary coating layer, so be preferred.
According to claim 5 or the described invention of claim 15, because a cover surface is preheating to below the heat decomposition temperature of a described coating layer and secondary coating layer, so can not make coating layer and secondary coating layer deterioration, can fully guarantee their adhesion strength, thereby be preferred.
According to claim 6 or the described invention of claim 16, by a described cover surface is carried out preheating with a described discontiguous mode of covered electric cable, can prevent that a cover surface is easy to generate distortion because of preheating is subjected to external force, can make outward appearance good insulation performance electric wire, so be preferred.
According to claim 7 or the described invention of claim 17, by a covered electric cable aligning into basic its straight state is offered the resin extruded operation, can extrusion resin substantially equably (under the eccentric little state of the electric wire in the secondary coating layer) push and be formed on the coating layer of electric wire.
According to claim 8 or the described invention of claim 18, after the insulated electric conductor cooling that extruding has been formed the secondary coating layer that constitutes by extrusion resin, utilize the measurement of film thickness measuring equipment to be coated on thick resin film on the conductor, even so suitably change creating conditions in each manufacturing process, also can make electric wire, so be preferred with the thick resin film that is fit to prevent corona discharge.This external should coating in thickness measure operation when for example finding the thin underproof part of thick resin film, can be removed this underproof part, so be preferred.
According to claim 9 or the described invention of claim 19, owing to can be not covered electric cable not be twisted on the bobbin etc., but directly carry out to tandem the preheating of a covered electric cable and coat extrusion resin, be absorbed and be closed in coating layer so can prevent moisture.Be described in detail below.Usually can consider temporarily covered electric cable twisted on the bobbin etc. and take care of, and extruding forms extrusion resin as required.If covered electric cable of directly long-term keeping, then enamel paint baking layer absorbs moisture, after this when using as insulated electric conductor, the moisture of a coating layer inside expands, can cause bad order because of expansion, under situation about further worsening, can produce baneful influence to the characteristics such as dielectric voltage withstand of insulated electric conductor.And according to claim 9 or the described invention of claim 19, owing to a covered electric cable is not batched, but direct tandem ground carries out preheating and coating extrusion resin to a covered electric cable, is absorbed and is closed in coating layer inside one time so can prevent moisture in advance.
According to the described invention of claim 10, not only resin such as ratio such as enamel paint is cheap for the PPS resin, and in the resin material that the resin extruded portion that is fit to for example to push generation type uses compatibility the best, so can with its on a coating layer that is coated on the wire conductor substantially equably extruding form.
According to the present invention, can provide manufacture method and the manufacturing installation thereof of stably making the insulated electric conductor of cheap and high-quality corona-resistant insulation electric wire.
Description of drawings
Fig. 1 is the key diagram of the manufacturing process of the expression manufacturing installation of making insulated electric conductor.
Fig. 2 is that expression adds the key diagram that the Ministry of worker carries out the rolling method of conductor by conductor.
Fig. 3 is the profile of an example of expression insulated electric conductor.
Fig. 4 is the profile of another example of expression insulated electric conductor.
The explanation of Reference numeral
A... conductor is supplied with operation
B... conductor manufacturing procedure
C... conductor annealing operation
D... film roasting procedure
E... electric wire preheating procedure
F... electric wire is aligned operation
G... resin extruded operation
H... electric wire refrigerating work procedure
I... film thickness is measured operation
J... electric wire coiling process
A... conductor
B... coating layer
C... secondary coating layer
D1... covered electric cable
D2... insulated electric conductor
1... manufacturing installation
2... conductor supply unit
3... conductor adds the Ministry of worker
3A... roller
3B... mould
4... conductor annealing portion
4a... annealing furnace
5... film baking portion
5a... oven
6... tractive unit
7... electric wire preheating part
8... electric wire aligning portion
9... resin extruded portion
10... electric wire cooling end
11... film thickness measurement section
12... tractive unit
13... electric wire reeling end
Embodiment
Fig. 1 represents manufacture method and the manufacturing installation thereof of the insulated electric conductor D2 of one embodiment of the present invention.Wherein mainly the manufacturing of insulated electric conductor D2 shown in Figure 3 is described, also relate to manufacturing in this external declaration as the insulated electric conductor D2 of Fig. 4 of variation.
As shown in Figure 1, the manufacturing installation 1 of manufacturing insulated electric conductor D2 has with the tandem moor arranged in order: conductor is supplied with the conductor supply unit 2 of operation a, the conductor of conductor manufacturing procedure b adds the Ministry of worker 3, the conductor annealing portion 4 of conductor annealing operation c, the film baking portion 5 of film roasting procedure d, tractive unit 6 after the film baking portion 5, the electric wire preheating part 7 of electric wire preheating procedure e, the electric wire aligning portion 8 of electric wire aligning operation f, the resin extruded portion 9 of resin extruded operation g, the electric wire cooling end 10 of electric wire refrigerating work procedure h, film thickness is measured the film thickness measurement section 11 of operation i, tractive unit 12 after the film thickness measurement section 11 and the electric wire reeling end 13 of electric wire coiling process j.Below each one is described.
The conductor supply unit 2 that conductor is supplied with operation a can be made of known supply unit etc., utilize driving mechanisms such as motor to drive, the conductor A as the circular cross section of raw material that provides from for example conductor manufacturing works etc., the conductor that offers conductor manufacturing procedure b continuously adds the Ministry of worker 3.
As shown in Figure 1 and Figure 2, the conductor of conductor manufacturing procedure b adds the Ministry of worker 3 and comprises: a pair of up and down roller 3A, 3A, and unfavorable with driving mechanisms such as motor, but utilize the contact resistance of conductor A freely to rotate; And mould 3B, the conductor A drawing that utilizes each roller 3A, 3A to be rolled into flat section is processed into the shape and size of regulation.
In order to use down a pair of roller 3A, 3A the conductor A of circular cross section is rolled into flat section, cardinal principle and each relative roller 3A, 3A of row arrangement.That is,, utilize tractive unit 6 described later to stretch, and utilize the contact resistance of this conductor A that each roller 3A, 3A are freely rotated to drawing direction P the conductor A that sends into the circular cross section between each roller 3A, 3A.Because the line of conductor A is directly big than the gap between each roller 3A, 3A, so when passing through between each roller 3A, 3A, be rolled into flat section.Also can be rolled in addition with roller 3A, the 3A of pair of right and left.
Wherein, pair of rolls 3A, 3A are unfavorable with driving mechanisms such as motor, but utilize the contact resistance of conductor freely to rotate.Promptly, by the limit directly big than the gap between each roller 3A, 3A conductor A of line is sent between each roller 3A, 3A, the limit stretches to the drawing direction with the tractive unit of narrating later, utilize the contact resistance of this conductor that each roller 3A, 3A are freely rotated, when passing through between each roller 3A, 3A, be rolled into flat section.Thus, because the pair of rolls 3A that freely rotates, 3A do not make this roller 3A, 3A force the driving mechanism that rotates, so be rolled processing according to the linear velocity of sending into the conductor A between each roller 3A, 3A.When drawing, give the thickness of the tensile force of conductor A according to conductor A, material can be carried out variable adjustment.
Consider machining accuracy and life-span etc., preferred widely used diamond mould of this mould 3B or similar mould.By selecting the hole shape of this mould 3B, except the flat section of embodiment, also can be processed into desirable transverse shape.In addition, the mould 3B also situation with roller 3A, 3A is identical, considers from the angle that prevents to break and prevent to shorten die life, and under the situation of the conductor A that uses fine copper, preferred reduction of area is 5～30%, more preferably 10～25% scope.
The conductor annealing portion 4 of conductor annealing operation c has annealing furnace 4a, passes its inside and carries out heat treated annealing added conductor A that the Ministry of worker 3 carried out drawing processing by conductor, removes when rolling and conductor A produces during drawing strain, makes it softening.
The film baking portion 5 of film roasting procedure d has oven 5a, coating and baking become the enamel paint of the enamel paint baking layer B1 of a coating layer B on annealed conductor A, in oven 5a, conductor A after the annealing that provides from conductor annealing portion 4 toasts once coating layer B, forms one time covered electric cable D1.
In addition as shown in Figure 4, the situation that forms tack coat B2 on enamel paint baking layer B 1 is arranged also, but in this case, be that coating constitutes the enamel paint of tack coat B2, and toasts in oven 5a once more, forms tack coat B2 after forming enamel paint baking layer B1.
Be configured in oven 5a tractive unit 6 afterwards and utilize drive mechanism such as motor, the conductor A that provides from conductor supply unit 2 is sent to conductor adds between each roller 3A, 3A of the Ministry of worker 3, and the conductor A in the hole by mould 3B is applied tensile force to drawing direction P.Described tensile force can change according to line footpath, the material of conductor A.
The electric wire preheating part 7 of electric wire preheating procedure e comprises: do not have the far infra-red heater of expression among the figure, air (below be also referred to as " hot blast ") is heated to the temperature (for example substantially 600 ℃) of hope; And the hair-dryer that does not have expression among the figure, the hot-air that utilizes this far infra-red heater to obtain is blowed to covered electric cable D1 one time, the hot blast of high temperature is blowed to a covered electric cable D1 who provides by film baking portion 5, carry out the cardinal principle uniform heating, thereby a covered electric cable D1 is preheating to the surface temperature that resin-bonding described later uprises.
Describe the preheating that electric wire preheating part 7 carries out below in detail.
In electric wire preheating part 7, by in advance a covered electric cable D1 being carried out preheating, can improve the adherence of coating layer B one side before resin extruded operation g reliably and be easy to generate the performance of chemical reaction, so can improve the bond properties of coating layer B and secondary coating layer C reliably.Because preheating is to be used to make the temperature of a coating layer B to compare with the situation that covered electric cable D1 is not carried out any preheating uprise, so at least a coating layer B is preheating to the temperature higher than room temperature.
For example under the situation of insulated electric conductor D2 shown in Figure 3, existence adds and does not add the situation of raising bond properties materials such as isocyanates in the extrusion resin that becomes secondary coating layer C, the preheat temperature of preferably corresponding change electric wire preheating part 7 is set.Wherein so-called raising bond properties material is meant the additive of the bond properties of an improvement and a coating layer B.
At first do not adding under the situation that improves the bond properties material, as long as owing to reach the temperature of the adherence raising that makes enamel paint baking layer B1, so the high more effect that improves bond properties of bringing into play more of temperature.Further bring up to more than the vitrification point (Tg) of this enamel paint baking layer B1 by making enamel paint baking layer B1 surface, can further improve with the bond properties of a coating layer B (be under the situation of polyamide-imide resin for example at an enamel paint baking layer B1, vitrification point Tg is about 270～300 ℃, makes temperature at this more than temperature).On the contrary under the temperature of the vitrification point Tg that is lower than enamel paint baking layer B1 during preheating, even when what mistake contact an enamel paint baking layer B1 with, an enamel paint baking layer B1 also is difficult to be out of shape, so be preferred.
Improving under the situation that the bond properties material adds extrusion resin too, really be that temperature is high more good more, but, preferably the temperature that improves the bond properties material is brought up to more than the minimum temperature that produces described chemical reaction from making raising bond properties material and a coating layer B fully carry out the angle consideration of chemical reaction.For example select respectively polyamidoimide as coating layer, PPS resin as secondary coating layer C, isocyanates as the situation that improves the bond properties material under, because one time coating layer is about 140 ℃ with the minimum chemical reaction temperature that improves the bond properties material, so preferably enamel paint baking layer B1 is preheating to this more than 140 ℃.
In addition as shown in Figure 4, form tack coat B2 on enamel paint baking layer B1, a coating layer B as insulated electric conductor D2 also can improve the cohesive force with secondary coating layer C.In this case, preferably covered electric cable D1 one side is preheating to more than the vitrification point of tack coat B2.For example tack coat B2 can be with PPSU resin (PPSU resin) is toasted formation as the enamel paint of an enamel paint baking layer B1.In this case, because the vitrification point of PPSU resin is about 220 ℃, so preferably tack coat B2 is preheating to this more than 220 ℃.
Consider covered electric cable D1 when electric wire preheating part 7 is provided to resin extruded portion 9, the surface temperature of a coating layer B reduces, thereby preferably preheat temperature is set for higher temperature.Set for shortly as far as possible in addition from electric wire preheating part 7 to the interval of resin extruded portion 9, such temperature is reduced be controlled at minimum limit.
The method of a covered electric cable D1 of preheating is not limited to the hot blast mode, if owing to raise the temperature to more than the vitrification point Tg then enamel paint baking layer B1 is just softening, so in the contact heating means that covered electric cable D1 direct contact heat source body is heated, owing to might make the warpage of enamel paint baking layer B1, so preferred as present embodiment, the noncontact mode of heating of the covered electric cable D1 of heat transfer indirect by air.
At this, a covered electric cable D1 who comes out from film baking portion 5 is not wound on the bobbin etc., but directly delivers to tandem electric wire preheating part 7.One time covered electric cable D1 can absorb moisture through long-term keeping, when using as insulated electric conductor D2 described later, the moisture of a coating layer B inside expands, and cause bad order because of expansion, under situation about further worsening, might produce harmful effect to the characteristics such as dielectric voltage withstand of insulated electric conductor D2.And as previously mentioned, in manufacturing installation 1, by directly deliver to electric wire preheating part 7 from film baking portion 5, coat with secondary coating layer C, can prevent that moisture is closed in coating layer B inside one time.
The electric wire aligning portion 8 of electric wire aligning operation f aligns the straighe state to a covered electric cable D1 who provides from electric wire preheating part 7 by not having the deflector roll of expression to constitute among the figure of a covered electric cable D1 aligning straighe state.If a crooked covered electric cable D1 directly offers resin extruded portion 9 the band point, the secondary coating layer C's that then forms on a coating layer B is in uneven thickness, is easy to generate sunburner or local thin excessively so-called uneven thickness.So by in described electric wire aligning portion 8, behind covered electric cable D1 aligning straighe state, offer resin extruded portion 9, can make and pass through the centre of position stability at extrusion die by a covered electric cable D1 in the extrusion die of resin extruded portion 9, can be squeezed in resin uniformly on the coating layer B of a covered electric cable D1 substantially like this, thereby prevent described uneven thickness.
The resin extruded portion 9 of resin extruded operation g has the resin extruded machine, extrusion resin is expressed on the coating layer B of a covered electric cable D1, by with thickness substantially uniformly mode extrusion resin is squeezed on the coating layer B by a covered electric cable D1 behind electric wire aligning portion 8 alignings, form secondary coating layer C.
The electric wire cooling end 10 of electric wire refrigerating work procedure h constitutes by for example insulated electric conductor D2 being immersed in cooling bath of cooling off in the liquid such as water etc.Electric wire cooling end 10 comprises: do not have the cooling bath of expression among the figure, for example will push insulated electric conductor D2 behind the formation secondary coating layer C and be immersed in the liquid and cool off; And the hair-dryer that does not have expression among the figure, carry out drying to the insulated electric conductor D2 winding-up air of from the liquid of cooling bath, pulling out.Electric wire cooling end 10 the insulated electric conductor D2 that provide from resin extruded portion 9 is provided the liquid of cooling bath and cools off, and makes to have improved the resin after the adhesiveness and be bonded in integratedly on coating layer B.Subsequently the air that is provided by hair-dryer is blowed to the insulated electric conductor D2 that pulls out from the liquid of cooling bath, make its drying.
Be configured in electric wire cooling end 10 film thickness measurement section 11 afterwards, be used to measure and calculate whole line footpath of insulated electric conductor D2 and the thickness of secondary coating layer C, constitute by known measuring instrument.
Be configured in tractive unit 12 after the film thickness measurement section 11 by drive mechanism such as motor, draw the insulated electric conductor D2 behind the extrusion resin separately, and always give and make it keep the tension force of its straight state degree.That is,, make it not produce distortion etc. by stronger tension force being applied on the conductor A from film roasting procedure d to resin extruded operation g and stretching.The tensile force of giving insulated electric conductor D2 can change according to line footpath, the material of insulated electric conductor D2.
The electric wire reeling end 13 of electric wire coiling process j is by drive mechanism such as motor, the insulated electric conductor D2 behind the extrusion resin that continuous reeling provides from resin extruded portion 9.
Below the method for making insulated electric conductor D2 with the manufacturing installation 1 that constitutes is as mentioned above described.The manufacture method of this insulated electric conductor D2 is to carry out following operation continuously in tandem (series connection) mode in the following order: promptly, conductor is supplied with operation a, conductor manufacturing procedure b, conductor annealing operation c, film roasting procedure d, electric wire preheating procedure e, electric wire aligning operation f, resin extruded operation g, electric wire refrigerating work procedure h, film thickness measurement operation i and electric wire coiling process j.
At first as shown in Figure 1, supply with among the operation a at conductor, the conductor A as raw material that conductor supply unit 2 is provided, the conductor that offers conductor manufacturing procedure b continuously adds the Ministry of worker 3.
In conductor manufacturing procedure b, stretch to drawing direction P being sent to the conductor A that conductor adds the circular cross section between each roller 3A, 3A of the Ministry of worker 3 by tractive unit 6, and the contact resistance that utilizes this conductor A freely rotates pair of rolls 3A, 3A, and the conductor A that is sent between each roller 3A, 3A is rolled into flat section.Because this moment is bigger than the gap between pair of rolls 3A, the 3A from the line footpath of the conductor A that conductor supply unit 2 provides, when conductor A passes through between each roller 3A, 3A, be rolled into flat section.Like this with the rolling conductor A of each roller 3A, 3A, pass the flat section hole 3Ba of mould 3B, and this conductor A limit of passing behind the flat section hole 3Ba is stretched to drawing direction P by tractive unit 6, and flat section is processed in the limit drawing, offers the conductor annealing portion 4 of conductor annealing operation c.
In conductor annealing operation c, the conductor A of the annealing furnace 4a that offers conductor annealing portion 4 is annealed, eliminate when rolling and conductor A produces during drawing strain, the conductor A after softening is offered the film baking portion 5 of film roasting procedure d.
In film roasting procedure d, coating enamel paint and toasting on the conductor A of the oven 5a that offers film baking portion 5 forms a coating layer B who is made of enamel paint baking layer B1, offers the electric wire preheating part 7 of electric wire preheating procedure e then.In oven 5a, covered electric cable D1 is passed in the stove for many times repeatedly.
In electric wire preheating procedure e, blow the hot blast of high temperature to covered electric cable D1 by electric wire preheating part 7, carry out the cardinal principle uniform heating, a covered electric cable D1 is preheating to the high surface temperature of resin-bonding performance described later after, offer the electric wire aligning portion 8 of electric wire aligning operation f.
In electric wire aligning operation f, always a covered electric cable D1 who offers electric wire aligning portion 8 by 12 pairs of tractive units gives the tension force that keeps its straight state degree, and, offer the resin extruded portion 9 of resin extruded operation g a covered electric cable D1 by electric wire aligning portion 8 aligning straighe states.
In resin extruded operation g, go up substantially extrusion resin equably by resin extruded portion 9 to the coating layer B of a covered electric cable D1, behind the formation secondary coating layer C, offer the electric wire cooling end 10 of electric wire refrigerating work procedure h.
In electric wire refrigerating work procedure h, insulated electric conductor D2 is immersed in the liquid of the cooling bath that is stored in electric wire cooling end 10 and cools off, resin after adhesiveness improves is bonded on coating layer B integratedly.The air that hair-dryer is provided blows to the insulated electric conductor D2 that pulls out and carries out drying from the liquid of cooling bath, afterwards, the insulated electric conductor D2 that is coated with the secondary coating layer C that is made of the PPS resin, offer the film thickness measurement section 11 that film thickness is measured operation i.
Measure among the operation i at film thickness, measure the thick resin film (a coating layer B and coat the thickness of secondary coating layer C thereon) of insulated electric conductor D2, offer the electric wire reeling end 13 of electric wire coiling process j then by film thickness measurement section 11.
In electric wire coiling process j, by electric wire reeling end 13 continuous reeling insulated electric conductor D2., under the situation more than the specific thickness,, use at the thickness of the secondary coating layer C that measures by film thickness measurement section 11 so can be used as qualified products because insulated electric conductor D2 is fit to prevent corona discharge.On the other hand, the insulated electric conductor D2 of secondary coating layer C thin thickness is used as the substandard products processing.
Wherein when batching insulated electric conductor D2, behind tractive unit 12 traction insulated electric conductor D2, utilize electric wire reeling end 13 to batch.The hauling speed of this moment is set for than the hauling speed of tractive unit 6 fast 2～5%.This is because because a covered electric cable D1 has been carried out preheating, makes this covered electric cable D1 show in the longitudinal direction elongation, thus improve the hauling speed of tractive unit 12, lax to prevent electric wire.
Utilize above manufacture method to make insulated electric conductor D2 as shown in Figure 3.Wherein conductor A uses oxygen-free copper, and the enamel paint baking layer B1 of a coating layer B uses and do not utilize the polyamide-imide resin that improves the bond properties material, because of being used for automotive electric motors, so select the PPS resin as secondary coating layer C from various kinds of resin.The fine heat-resisting performance of PPS resin has flexible performance, so in the material that the resin extruded portion 9 that is fit to the resin extruded formula uses, be one of purposes compatibility best material with vehicle electric motor.
Wherein for example be processed on the conductor A of flat section of thickness T 1=2mm, width W=3.5mm in drawing, coat the coating layer B of thickness T 2=40 μ m, on this coating layer B, coat the secondary coating layer C of thickness T 3=140 μ m, produce insulated electric conductor D2.
At this moment, in electric wire preheating part 7, the enamel paint of a covered electric cable D1 baking layer B1 surface temperature is preheating to 270～300 ℃ of cardinal principles can fully soften enamel paint baking layer B1 surface after, offer resin extruded portion 9.Make furnace temperature be roughly 280～320 ℃ in this external resin extruded portion 9, on described soft state coating layer B, extruding forms secondary coating layer C in front.
Its result, can obtain corona inception voltage Vp is that 1200V, adhesion strength are the insulated electric conductor D2 about 100mg/mm.
As mentioned above, manufacture method and manufacturing installation when the insulated electric conductor that adopts present embodiment, on metal conductor A, form a coating layer B who comprises enamel paint baking layer B1 at least, as a covered electric cable D1, on the coating layer B of this covered electric cable D1, form secondary coating layer C, when producing the insulated electric conductor D2 of regulation section configuration, by having electric wire preheating procedure e by a coating layer B of electric wire preheating part 7 preheatings surface; And on a coating layer B after this preheating, push the resin extruded operation g that forms secondary coating layer C by resin extruded portion 9, can improve coating layer B bond properties to secondary coating layer C, even change the material of insulated electric conductor D2 and size etc., a coating layer B stablized with the adhesion strength of secondary coating layer C.Therefore can stably make cheap and high-quality corona-resistant insulation electric wire.
In addition, outermost layer at a coating layer B is under the situation of enamel paint baking layer B1, in electric wire preheating procedure e, more than the vitrification point Tg that the surface of a coating layer B is preheating to enamel paint baking layer B1, make enamel paint baking layer B1 surface softening, can improve coating layer B bond properties more reliably secondary coating layer C.
In addition, when the tack coat that forms the tack coat B2 that bonds with secondary coating layer C in a coating layer B in addition on enamel paint baking layer B1 coats under the situation of operation, in electric wire preheating procedure e, by a coating layer B surface is preheating to more than the vitrification point Tg of tack coat B2, make the surface of tack coat B2 softening, can improve coating layer B bond properties reliably secondary coating layer C.
Outermost layer at a coating layer B is to have added in enamel paint baking layer B1 and the extrusion resin that is forming secondary coating layer C to improve under the situation of bond properties material, in electric wire preheating part 7, be preheating to more than the minimum temperature that improves bond properties material and enamel paint baking layer B1 generation chemical reaction by enamel paint being toasted a layer B1 surface, can make more reliably and improve a bond properties material and an enamel paint baking layer B1 generation chemical reaction, can improve the bond properties of coating layer B and secondary coating layer C more reliably.
Among this external electric wire preheating procedure e, below the heat decomposition temperature that coating layer B surface is preheating to coating layer B and secondary coating layer C, can prevent coating layer B and secondary coating layer C deterioration.
In electric wire preheating procedure e, by with a coating layer B of a discontiguous mode preheating of covered electric cable D1 surface, can make once coating layer B surface configuration not produce shifting ground extruding and form secondary coating layer C.
After a covered electric cable D1 after the preheating being aligned the cardinal principle straight condition by electric wire aligning portion 8, offer resin extruded portion 9, can prevent the uneven thickness of extrusion resin.
Preferably: by cooling insulated electric conductor D2, and measure the thick resin film of this cooled insulated electric conductor D2, even creating conditions in each manufacturing process of appropriate change also can produce the electric wire with the thick resin film that is fit to prevent corona discharge.In addition preferably: coat in the thickness measure operation at this, for example under the situation of finding the defective part that thick resin film is thin, can remove this part.
In addition preferably: by covered electric cable D1 not being batched on bobbin etc., but directly carry out to tandem the preheating of a covered electric cable D1 and coat extrusion resin, can prevent that moisture is absorbed and is closed in coating layer B.
Not only resin such as ratio such as enamel paint is cheap for the PPS resin, and for example in the resin material that the resin extruded portion that is fit to the extruding generation type uses compatibility best, suitable cardinal principle is squeezed on the coating layer B of coating conductor A equably, so preferred PPS resin is as the extrusion resin that constitutes secondary coating layer C.
According to above explanation, adopt manufacturing installation and the manufacture method of the insulated electric conductor D2 of present embodiment, can stably make cheap and high-quality corona-resistant insulation electric wire.
In addition, the manufacture method of insulated electric conductor of the present invention and manufacturing installation are not limited to above-mentioned execution mode.
For example conductor A, enamel paint baking layer B1, tack coat B2, the material of secondary coating layer C, thickness, width all are not limited to the foregoing description, can change according to purposes.
Conductor A section before for example rolling processing can be circle, egg type, pancake, ellipse etc.The material of this outer conductor for example can be the metal that aluminium, silver, copper etc. have conductivity.The main copper that uses in this case, except fine copper, is particularly suitable for using hypoxemia copper or oxygen-free copper.At rolling conductor is under the situation of fine copper, from preventing to break and the rolling angle of finishing the dimensional stability of shape is considered, utilizes reduction of area that pair of rolls obtains preferably 5～30%, more preferably 10～25%.Increasing under the situation of reduction of area, can perhaps also can pass through a plurality of rolling units etc. continuously with each roller repeat-rolling repeatedly.
According to the purposes difference, the extrusion resin that constitutes secondary coating layer C except the PPS resin, also can use polyvinyl resin, acrylic resin, with ethene as the ethene copolymer of one of monomer component, be the polyolefin resins such as propylene copolymers of one of monomer component, vinyl chloride resin, fluorine-type resin etc. with propylene.Also can use mylar, polyamide, polyimide resin, polyamide-imide resin, polyetherimide resin, polysulfone resin in addition, the condensation resinoid of excellent heat resistances such as polyethersulfone resin etc.The resin that contains imide bond (polyimides, polyamidoimide, the polyesterimide etc.) thermal endurance, resistance to wear, the chemical stability that import a plurality of aromatic rings in addition are also good, are particularly suitable for using.
Explanation is in the above-described embodiment: in order with pair of rolls 3A, 3A the conductor A of circular cross section to be rolled into flat section, and an axial periphery is made the roller cardinal principle and the row arrangement of same diameter, but except the pancake section, wanting to be rolled under the situation of desirable section configuration, as long as use to roller that should shape.
In structure of the present invention and the foregoing description corresponding:
Conductor supply arrangement of the present invention is corresponding to the conductor supply unit 2 of embodiment,
Below identical,
The conductor process equipment adds the Ministry of worker 3 corresponding to conductor,
The conductor annealing device is corresponding to conductor annealing portion 4,
The film roasting plant is corresponding to film baking portion 5,
The electric wire pre-heating device is corresponding to electric wire preheating part 7,
The electric wire equipment for straightening is corresponding to electric wire aligning portion 8,
Resin extruded equipment is corresponding to resin extruded portion 9,
The electric wire cooling device is corresponding to electric wire cooling end 10,
The film thickness measuring equipment is corresponding to film thickness measurement section 11,
The electric wire taking-up equipment is corresponding to electric wire reeling end 13,
The present invention not merely is defined in the structure of the foregoing description, can also use according to the technological thought that claim embodied, and can obtain numerous embodiments.
Claims (19)
1. the manufacture method of an insulated electric conductor, be on metal conductor, form contain enamel paint baking layer at least a coating layer as a covered electric cable, and on a coating layer of this covered electric cable, extruding forms the secondary coating layer, make insulated electric conductor, it is characterized in that
The manufacture method of described insulated electric conductor comprises:
The electric wire preheating procedure utilizes the electric wire pre-heating device that a described cover surface is carried out preheating; And
The resin extruded operation is utilized resin extruded equipment to push on a coating layer after this preheating and is formed the secondary coating layer.
2. the manufacture method of insulated electric conductor according to claim 1, it is characterized in that, outermost layer at a described coating layer is under the situation of described enamel paint baking layer, in described electric wire preheating procedure, a described cover surface is preheating to the vitrification point that is lower than described enamel paint baking layer.
3. the manufacture method of insulated electric conductor according to claim 1, it is characterized in that, when on described enamel paint baking layer, be formed with in the described coating layer with the tack coat of described secondary coating layer bonding and the outermost layer of a described coating layer be under the situation of this tack coat, in described electric wire preheating procedure, a described cover surface is preheating to more than the vitrification point of described tack coat.
4. the manufacture method of insulated electric conductor according to claim 1, it is characterized in that, when in described secondary coating layer, adding under the situation that improves the bond properties material, in described electric wire preheating procedure, a described cover surface is preheating to more than the minimum temperature of described raising bond properties material and described coating layer generation chemical reaction.
5. according to the manufacture method of each described insulated electric conductor in the claim 1～4, it is characterized in that, in described electric wire preheating procedure, a described cover surface is preheating to below the heat decomposition temperature of a described coating layer and secondary coating layer.
6. according to the manufacture method of each described insulated electric conductor in the claim 1～5, it is characterized in that, in described electric wire preheating procedure, a described cover surface is carried out preheating with a described discontiguous mode of covered electric cable.
7. according to the manufacture method of each described insulated electric conductor in the claim 1～6, it is characterized in that, the manufacture method of described insulated electric conductor also comprises electric wire aligning operation, described covered electric cable after described electric wire aligning operation utilizes the electric wire equipment for straightening described preheating is aligned into basic straight condition, offers described resin extruded equipment.
8. according to the manufacture method of each described insulated electric conductor in the claim 1～7, it is characterized in that the manufacture method of described insulated electric conductor also comprises:
The electric wire refrigerating work procedure utilizes the electric wire cooling device that the insulated electric conductor that extruding forms described secondary coating layer is cooled off; And
Film thickness is measured operation, utilizes the film thickness measuring equipment to measure the thick resin film of this cooled insulated electric conductor.
9. the manufacture method of insulated electric conductor according to claim 1 is characterized in that comprising:
Conductor is supplied with operation, utilizes the conductor supply arrangement that described conductor is provided continuously;
The conductor manufacturing procedure makes from described conductor and supplies with the conductor that operation provides, and the limit is rolled by the pair of rolls of freely rotating without driving mechanism, and the shape of regulation is processed on the limit by the mould drawing;
The conductor annealing operation utilizes the conductor after the conductor annealing device is processed drawing in described conductor manufacturing procedure to anneal;
The film roasting procedure utilizes on the conductor after the film roasting plant is annealed in described conductor annealing operation and coats coating layer of formation by baking;
Described electric wire preheating procedure utilizes the electric wire pre-heating device to carry out preheating to coat a covered electric cable that has formed a coating layer in described film roasting procedure;
Electric wire aligning operation utilizes the electric wire equipment for straightening a covered electric cable after the preheating in described electric wire preheating procedure, aligns into basic straight condition;
The resin extruded operation utilizes resin extruded equipment the extrusion resin extruding to be formed on the coating layer that utilizes a covered electric cable after described electric wire aligning operation is aligned;
The electric wire refrigerating work procedure utilizes the electric wire cooling device push the insulated electric conductor that has formed extrusion resin in described resin extruded operation, is cooled to make extrusion resin to be bonded in the temperature on the coating layer integratedly one time;
Film thickness is measured operation, utilizes the film thickness measuring equipment to measure the thick resin film of the insulated electric conductor that is cooled in described electric wire refrigerating work procedure; And
The electric wire coiling process utilizes the electric wire taking-up equipment that the insulated electric conductor that has coated extrusion resin in described resin extruded operation is batched;
Described conductor supply arrangement, described conductor process equipment, described conductor annealing device, described film roasting plant, described electric wire pre-heating device, described electric wire equipment for straightening, described resin extruded equipment, described electric wire cooling device, described film thickness measuring equipment and the configuration of described electric wire taking-up equipment tandem, and carry out continuously supplying with the whole operations of operation to the electric wire coiling process from described conductor.
10. according to the manufacture method of each described insulated electric conductor in the claim 1～9, it is characterized in that the extrusion resin that constitutes described secondary coating layer is a polyphenyl stream ether resin.
11. the manufacturing installation of an insulated electric conductor, the coating layer that formation contains enamel paint baking layer at least on metal conductor is as a covered electric cable, and extruding forms the secondary coating layer on a coating layer of this covered electric cable, makes insulated electric conductor, it is characterized in that
The manufacturing installation of described insulated electric conductor comprises:
The electric wire pre-heating device carries out preheating to a described cover surface; And
Resin extruded equipment, extruding forms the secondary coating layer on a coating layer after this preheating.
12. the manufacturing installation of insulated electric conductor according to claim 11, it is characterized in that, outermost layer at a described coating layer is under the situation of described enamel paint baking layer, utilizes described electric wire pre-heating device a described cover surface to be preheating to the vitrification point that is lower than described enamel paint baking layer.
13. the manufacturing installation of insulated electric conductor according to claim 11, it is characterized in that, when on described enamel paint baking layer, be formed with in the described coating layer with the tack coat of described secondary coating layer bonding and the outermost layer of a described coating layer be under the situation of this tack coat, utilize described electric wire pre-heating device that a described cover surface is preheating to more than the vitrification point of described tack coat.
14. the manufacturing installation of insulated electric conductor according to claim 11, it is characterized in that, in described secondary coating layer, add under the situation that improves the bond properties material, utilize described electric wire pre-heating device that a described cover surface is preheating to more than the minimum temperature of described raising bond properties material and described coating layer generation chemical reaction.
15. the manufacturing installation according to each described insulated electric conductor in the claim 11～14 is characterized in that, utilizes described electric wire pre-heating device that a described cover surface is preheating to below the heat decomposition temperature of a described coating layer and secondary coating layer.
16. the manufacturing installation according to each described insulated electric conductor in the claim 11～15 is characterized in that, described electric wire pre-heating device is to carry out preheating with a described discontiguous mode of covered electric cable to a described cover surface.
17. manufacturing installation according to each described insulated electric conductor in the claim 11～16, it is characterized in that, the manufacturing installation of described insulated electric conductor also comprises the electric wire equipment for straightening, is used for a covered electric cable after the described preheating is aligned into basic straight condition, offers resin extruded equipment.
18. the manufacturing installation according to each described insulated electric conductor in the claim 11～17 is characterized in that, the manufacturing installation of described insulated electric conductor also comprises:
The electric wire cooling device, the insulated electric conductor that extruding has been formed described secondary coating layer cools off; And
The film thickness measuring equipment is measured the thick resin film of this cooled insulated electric conductor.
19. the manufacturing installation of insulated electric conductor according to claim 11 is characterized in that comprising:
The conductor supply arrangement provides described conductor continuously;
The conductor that provides from described conductor supply arrangement is provided the conductor process equipment, and the limit is rolled by the pair of rolls of freely rotating without driving mechanism, and the shape of regulation is processed on the limit by the mould drawing;
The conductor annealing device is annealed to the conductor that utilizes described conductor process equipment to carry out after drawing is processed;
The film roasting plant on the conductor after utilizing described conductor annealing device annealing, coats coating layer of formation by baking;
The electric wire pre-heating device carries out preheating to utilizing described film roasting plant to coat a covered electric cable that has formed a coating layer;
The electric wire equipment for straightening is utilizing a covered electric cable after the preheating of described electric wire pre-heating device to align into basic straight condition;
Resin extruded equipment, on the coating layer of a covered electric cable after utilizing described electric wire equipment for straightening aligning, extruding forms the secondary coating layer that is made of extrusion resin;
The electric wire cooling device, the insulated electric conductor utilizing described resin extruded equipment extruding formation extrusion resin is cooled to make described resin to be bonded in the temperature on the coating layer integratedly one time;
The film thickness measuring equipment is measured the thick resin film that utilizes the cooled insulated electric conductor of described electric wire cooling device; And
The electric wire taking-up equipment batches utilizing described resin extruded equipment to coat the insulated electric conductor behind the resin;
Described conductor supply arrangement, described conductor process equipment, described conductor annealing device, described film roasting plant, described electric wire pre-heating device, described electric wire equipment for straightening, described resin extruded equipment, described electric wire cooling device, described film thickness measuring equipment and the configuration of described electric wire taking-up equipment tandem.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007091982 | 2007-03-30 | ||
| JP091982/2007 | 2007-03-30 | ||
| PCT/JP2008/000793 WO2008126375A1 (en) | 2007-03-30 | 2008-03-28 | Method and apparatus for producing insulated wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558459A true CN101558459A (en) | 2009-10-14 |
| CN101558459B CN101558459B (en) | 2012-06-13 |
Family
ID=39863535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008800007662A Active CN101558459B (en) | 2007-03-30 | 2008-03-28 | Method and apparatus for producing insulated wire |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US8790747B2 (en) |
| EP (1) | EP2133885B1 (en) |
| JP (2) | JP5441686B2 (en) |
| CN (1) | CN101558459B (en) |
| RU (1) | RU2480853C2 (en) |
| WO (1) | WO2008126375A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578618A (en) * | 2012-07-20 | 2014-02-12 | 株式会社电装 | Insulated electric wire |
| CN104028413A (en) * | 2014-06-13 | 2014-09-10 | 上海桔红实业有限公司 | Production system of definite elongation wire |
| CN104637628A (en) * | 2015-01-26 | 2015-05-20 | 河北瑞光线缆有限公司 | Production technology of SPP water-resistant winding wire |
| CN105705254A (en) * | 2013-09-26 | 2016-06-22 | Abb技术有限公司 | Method of manufacturing a polymer-insulated conductor |
| CN106448925A (en) * | 2016-10-26 | 2017-02-22 | 国家电网公司 | SPP water-tolerant winding wire manufacturing technique |
| CN107112083A (en) * | 2014-12-26 | 2017-08-29 | 古河电气工业株式会社 | Insulated electric conductor and coil |
| CN107971430A (en) * | 2017-11-22 | 2018-05-01 | 安徽天瑞电子科技有限公司 | Electric wire unreels high efficient and reliable cut-off device |
| CN109300619A (en) * | 2018-12-07 | 2019-02-01 | 江苏科信光电科技有限公司 | Production line is used in a kind of processing of insulation series line |
| CN111968794A (en) * | 2020-08-17 | 2020-11-20 | 王成艳 | Cable insulating layer coating method |
| CN112687433A (en) * | 2020-12-25 | 2021-04-20 | 厦门市能诚电子科技有限公司 | Power line cladding production system |
| CN112768149A (en) * | 2020-12-28 | 2021-05-07 | 东莞市长胜电线有限公司 | Preparation method of high-flexibility wear-resistant anti-interference audio cable and audio cable |
| CN113926640A (en) * | 2021-08-13 | 2022-01-14 | 刘彪 | Enameled wire production coating equipment and method |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009043495A (en) * | 2007-08-07 | 2009-02-26 | Furukawa Electric Co Ltd:The | Insulation wire and signalling transformer, or transformer for vehicle |
| JP2010283138A (en) * | 2009-06-04 | 2010-12-16 | Hitachi Cable Ltd | Solar cell lead wire and method of manufacturing the same, and solar cell using the same |
| MD4092C1 (en) * | 2009-09-24 | 2011-08-31 | Технический университет Молдовы | Microwire casting installation |
| MD4100C1 (en) * | 2009-09-24 | 2011-09-30 | Технический университет Молдовы | Method for manufacturing a resistor from a conductor |
| CN104437990B (en) * | 2013-09-23 | 2017-12-12 | 佛山市顺德区迅杰电子电器有限公司 | Coating apparatus |
| US10001366B2 (en) | 2013-10-11 | 2018-06-19 | Furukawa Electric Co., Ltd. | Coating thickness inspection method and coating thickness inspection device |
| US9887607B2 (en) | 2013-10-21 | 2018-02-06 | Borgwarner Inc. | Method for forming and annealing an insulated conductor |
| CN104028577B (en) * | 2014-06-26 | 2016-08-24 | 芜湖楚江合金铜材有限公司 | A kind of copper alloy flat wire combined type process equipment |
| DE102014013558B4 (en) * | 2014-09-18 | 2016-10-27 | Hartmut Bayer | Audio cable for signal transmission |
| JP5778332B1 (en) * | 2014-12-26 | 2015-09-16 | 古河電気工業株式会社 | Insulated wires with excellent bending resistance, coils and electronic / electric equipment using them |
| GB201501601D0 (en) * | 2015-01-30 | 2015-03-18 | Victrex Mfg Ltd | Insulated conductors |
| CN104952556B (en) * | 2015-07-23 | 2017-07-07 | 安吉腾飞电子有限公司 | A kind of insulating exruded winding production line of twisted conductor |
| KR101708913B1 (en) * | 2016-04-19 | 2017-02-21 | 이경호 | Insulation cord for easy construction and manufacturing method |
| CN105957643B (en) * | 2016-06-17 | 2017-12-26 | 资阳中车电力机车有限公司 | A kind of big line cable machining production line of locomotive |
| JP6373309B2 (en) * | 2016-07-19 | 2018-08-15 | 古河電気工業株式会社 | Insulated wires, coils and electrical / electronic equipment |
| CN107240462B (en) * | 2016-12-10 | 2019-05-24 | 合肥智慧龙图腾知识产权股份有限公司 | A kind of power distribution panel cable label set automatic baking device |
| JP7006290B2 (en) * | 2018-01-17 | 2022-02-10 | 日立金属株式会社 | Enamel wire manufacturing method |
| JP6962223B2 (en) * | 2018-02-06 | 2021-11-05 | 日立金属株式会社 | Enamel wire manufacturing method and manufacturing equipment |
| KR20200044510A (en) * | 2018-10-19 | 2020-04-29 | (주)삼원산업사 | Method for manufacturing lightweight compressed conductor wire and device thereof |
| CN113450974B (en) * | 2021-06-08 | 2022-06-14 | 安徽正豪电缆有限公司 | Low-smoke halogen-free flame-retardant cable sheath and coating equipment thereof |
| KR102498266B1 (en) * | 2022-10-18 | 2023-02-09 | 주식회사 케이디일렉트릭 | cable manufacturing equipment for multi-tap |
| KR102527464B1 (en) * | 2023-02-02 | 2023-04-28 | 유기돈 | Electric wire manufacturing device |
Family Cites Families (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4891567A (en) * | 1972-03-07 | 1973-11-28 | ||
| JPS52130410A (en) * | 1976-04-27 | 1977-11-01 | Furukawa Electric Co Ltd:The | Electroconductive a1 alloy |
| JPS5514266A (en) * | 1978-07-19 | 1980-01-31 | Nippon Steel Corp | Method of manufacturing polyolefin-coated steel wire |
| JPS5837617U (en) | 1981-09-08 | 1983-03-11 | 三菱電線工業株式会社 | insulated wire |
| JPS5837617A (en) | 1982-06-16 | 1983-03-04 | Hitachi Ltd | Optical scanner |
| JPS5940409A (en) * | 1982-08-31 | 1984-03-06 | 株式会社フジクラ | Insulated wire |
| JPS59127312A (en) * | 1982-12-30 | 1984-07-23 | 東京特殊電線株式会社 | Heat resistant polyurethane insulated wire |
| JPS63120731A (en) * | 1986-11-11 | 1988-05-25 | Central Glass Co Ltd | Aromatic polyether-ketone resin |
| JPS63252324A (en) * | 1987-04-08 | 1988-10-19 | 昭和電線電纜株式会社 | Manufacture of flat insulated wire |
| JPH02137225U (en) * | 1989-04-19 | 1990-11-15 | ||
| RU2016426C1 (en) * | 1989-04-25 | 1994-07-15 | Всероссийский научно-исследовательский, проектно-конструкторский и технологический институт кабельной промышленности | Insulated multistrand conductor manufacturing process |
| JPH03207754A (en) * | 1990-01-09 | 1991-09-11 | Idemitsu Kosan Co Ltd | Compatible resin composition |
| US5151147A (en) * | 1990-08-17 | 1992-09-29 | Reynolds Metals Company | Coated article production system |
| WO1996032525A1 (en) * | 1995-04-14 | 1996-10-17 | Nippon Tungsten Co., Ltd. | Noncontact heater for wire material |
| JPH1120422A (en) * | 1997-07-07 | 1999-01-26 | Bridgestone Corp | Pneumatic radial tire for heavy load |
| JPH11204229A (en) * | 1998-01-07 | 1999-07-30 | Japan Automat Mach Co Ltd | Both end crimping device for coated wire |
| JP3446199B2 (en) * | 1998-03-02 | 2003-09-16 | 住友電気工業株式会社 | Manufacturing method of multilayer insulated wire |
| US6288342B1 (en) * | 1998-12-15 | 2001-09-11 | Sumitomo Electric Industries, Ltd. | Insulated wire |
| JP2000213682A (en) * | 1999-01-25 | 2000-08-02 | Sunny Kogyo Kk | Ferrule coupling and connecting method of pipe using this coupling |
| US6732562B2 (en) * | 2000-05-09 | 2004-05-11 | University Of Central Florida | Apparatus and method for drawing continuous fiber |
| JP3604337B2 (en) * | 2000-10-03 | 2004-12-22 | 古河電気工業株式会社 | Manufacturing method of insulated wire |
| GB0207351D0 (en) * | 2002-03-28 | 2002-05-08 | Avecia Bv | Aqueous coating composition |
| JP3999031B2 (en) * | 2002-04-26 | 2007-10-31 | 東京特殊電線株式会社 | Manufacturing method of square cross-section magnet wire |
| JP4177295B2 (en) * | 2003-12-17 | 2008-11-05 | 古河電気工業株式会社 | Inverter surge resistant wire and method for manufacturing the same |
| JP2005228803A (en) * | 2004-02-10 | 2005-08-25 | Shindengen Electric Mfg Co Ltd | Semiconductor device and its manufacturing method |
| JP2006068920A (en) * | 2004-08-31 | 2006-03-16 | Shin Etsu Chem Co Ltd | Manufacturing method of flexible copper foil/polyimide laminate |
| US20080128154A1 (en) * | 2004-12-06 | 2008-06-05 | Siements Aktiengesellschaft | Method for Producing a Winding Conductor for Electrical Appliances, and Winding Conductor Producing According to Said Method |
| JP4669715B2 (en) * | 2005-02-23 | 2011-04-13 | 株式会社康井精機 | Composite material sheet manufacturing equipment |
| JP4616682B2 (en) * | 2005-03-31 | 2011-01-19 | 株式会社巴川製紙所 | Double-sided metal plate |
| JP2007003582A (en) * | 2005-06-21 | 2007-01-11 | Fujikura Ltd | Polyimide coated image fiber and method of manufacturing same |
-
2008
- 2008-03-28 EP EP08720660.3A patent/EP2133885B1/en active Active
- 2008-03-28 US US12/531,363 patent/US8790747B2/en active Active
- 2008-03-28 JP JP2009508897A patent/JP5441686B2/en active Active
- 2008-03-28 CN CN2008800007662A patent/CN101558459B/en active Active
- 2008-03-28 RU RU2009113246/07A patent/RU2480853C2/en active
- 2008-03-28 WO PCT/JP2008/000793 patent/WO2008126375A1/en active Application Filing
-
2013
- 2013-12-13 JP JP2013258516A patent/JP5667278B2/en active Active
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578618A (en) * | 2012-07-20 | 2014-02-12 | 株式会社电装 | Insulated electric wire |
| CN105705254A (en) * | 2013-09-26 | 2016-06-22 | Abb技术有限公司 | Method of manufacturing a polymer-insulated conductor |
| CN105705254B (en) * | 2013-09-26 | 2017-10-17 | Abb技术有限公司 | The method for manufacturing polymer-insulated conductors |
| CN104028413A (en) * | 2014-06-13 | 2014-09-10 | 上海桔红实业有限公司 | Production system of definite elongation wire |
| CN107112083B (en) * | 2014-12-26 | 2019-09-27 | 古河电气工业株式会社 | Insulated electric conductor and coil |
| CN107112083A (en) * | 2014-12-26 | 2017-08-29 | 古河电气工业株式会社 | Insulated electric conductor and coil |
| CN104637628A (en) * | 2015-01-26 | 2015-05-20 | 河北瑞光线缆有限公司 | Production technology of SPP water-resistant winding wire |
| CN106448925A (en) * | 2016-10-26 | 2017-02-22 | 国家电网公司 | SPP water-tolerant winding wire manufacturing technique |
| CN107971430A (en) * | 2017-11-22 | 2018-05-01 | 安徽天瑞电子科技有限公司 | Electric wire unreels high efficient and reliable cut-off device |
| CN109300619A (en) * | 2018-12-07 | 2019-02-01 | 江苏科信光电科技有限公司 | Production line is used in a kind of processing of insulation series line |
| CN111968794A (en) * | 2020-08-17 | 2020-11-20 | 王成艳 | Cable insulating layer coating method |
| CN112687433A (en) * | 2020-12-25 | 2021-04-20 | 厦门市能诚电子科技有限公司 | Power line cladding production system |
| CN112687433B (en) * | 2020-12-25 | 2022-06-07 | 厦门市能诚电子科技有限公司 | Power line cladding production system |
| CN112768149A (en) * | 2020-12-28 | 2021-05-07 | 东莞市长胜电线有限公司 | Preparation method of high-flexibility wear-resistant anti-interference audio cable and audio cable |
| CN112768149B (en) * | 2020-12-28 | 2022-07-05 | 东莞市长胜电线有限公司 | Preparation method of high-flexibility wear-resistant anti-interference audio cable and audio cable |
| CN113926640A (en) * | 2021-08-13 | 2022-01-14 | 刘彪 | Enameled wire production coating equipment and method |
Also Published As
| Publication number | Publication date |
|---|---|
| RU2480853C2 (en) | 2013-04-27 |
| CN101558459B (en) | 2012-06-13 |
| RU2009113246A (en) | 2011-05-10 |
| JP5441686B2 (en) | 2014-03-12 |
| JPWO2008126375A1 (en) | 2010-07-22 |
| WO2008126375A1 (en) | 2008-10-23 |
| JP5667278B2 (en) | 2015-02-12 |
| EP2133885B1 (en) | 2013-06-19 |
| EP2133885A1 (en) | 2009-12-16 |
| US8790747B2 (en) | 2014-07-29 |
| JP2014063756A (en) | 2014-04-10 |
| US20100203231A1 (en) | 2010-08-12 |
| EP2133885A4 (en) | 2011-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101558459B (en) | Method and apparatus for producing insulated wire | |
| CN104185611B (en) | The method and apparatus for manufacturing glass tape | |
| EP3605558B1 (en) | Insulated electric wire, production method therefor, coil and coil production method using same | |
| US20140216340A1 (en) | Method and apparatus for producing insulated wire | |
| US2019555A (en) | Electric heating and conditioning apparatus and method | |
| US3335260A (en) | Annealing apparatus for wire and like conductors | |
| EP2755211B1 (en) | Method and arrangement of crosslinking or vulcanizing an elongate element | |
| US10984922B2 (en) | Insulated electric wire, method for manufacturing same, and coil | |
| ES2719980T3 (en) | Procedure and device for treating a wire | |
| WO2021182418A1 (en) | Method for manufacturing insulated electric wire, and apparatus for manufacturing insulated electric wire | |
| EP2574439B1 (en) | Method and arrangement of crosslinking or vulcanising an elongate element | |
| CN107936600B (en) | Insulated cable and preparation method thereof | |
| JPH10217342A (en) | Production of polypropylene resin sheet | |
| US20100300351A1 (en) | Apparatus for production of composite material sheet | |
| JP2002365926A (en) | Method for repairing electrically semiconductive belt | |
| US11631504B2 (en) | Polymer-coated wires | |
| US1495175A (en) | Apparatus for heat treating metal-coated materials | |
| JP4861853B2 (en) | Manufacturing method of spacer for optical fiber cable | |
| JPS63134222A (en) | Longitudinal orientation of polyphenylene sulfide film and device therefor | |
| CN115762914A (en) | Wrapping process of PEEK electromagnetic wire | |
| KR20120075128A (en) | Continuous coating system and process using ultraviolet curing device | |
| JPH01103412A (en) | Method of heating roll | |
| JP6634207B2 (en) | Longitudinal stretching device | |
| JP6289236B2 (en) | Method for producing electrophotographic member | |
| JP3483168B2 (en) | Method for producing polyethylene sheet laminated with primer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210611 Address after: American Georgia Patentee after: Essex Guhe electromagnetic wire Co.,Ltd. Address before: Tokyo, Japan Patentee before: FURUKAWA ELECTRIC Co.,Ltd. |
|
| TR01 | Transfer of patent right |